TM 55-1520-240-T
10-4.4 ERFS II SINGLE POINT PRESSURE REFUELING SYSTEM OPERATIONAL CHECK
10-4.4
INITIAL SETUP
Applicable Configurations:
With
Tools:
None
Materials:
None
Personnel Required:
Medium Helicopter Repairer
References:
TM 55-1520-240-23
TM 1-1560-312-10
Equipment Condition:
TM 55-1520-240-23:
Electrical Power Off
Battery Connected
Hydraulic Power Off
TM 1-1560-312-10:
ERFS II Fuel Control Panel Connected
Visual Check of ERFS II Airframe Components
Performed (Task 10-4.3)
TASK
RESULT
1.
Check that FUEL REFUEL circuit breaker (1) is closed.
2.
Set REFUEL STATION switch (2) to ON.
3.
Set ERFS II REFUEL VALVE switch (3) to OPEN.
4
Set ERFS II REFUEL VALVE switch (3) to CLOSE.
FOLLOW-ON MAINTENANCE:
TM 55-1520-240-23:
Battery disconnected.
If circuit breaker (1) is open, close it. If it opens again, go
to task 10-4.5.
IN-TRANSIT light (4) comes on during valve (5) operation
and goes out when valve is open. Check that ERFS II
refuel valve handle (6) is in OPEN position. If light (4)
does not come on and handle is not at OPEN, go to task
10-4.6. If light comes on and stays on but handle is not at
OPEN, go to task 10-4.7. If light does not come on but
handle is at OPEN, go to task 10-4.8. If light comes on
and stays on but handle is at OPEN, replace ERFS II
refuel valve.
IN-TRANSIT light (4) comes on during valve (5) operation
and goes out when valve is closed. Check that ERFS II
refuel valve handle (6) is in CLSD position. If light (4) does
not come on and handle is not at CLSD, go to task 10-4.9.
If light comes on and stays on but handle is at CLSD,
replace ERFS II refuel valve.
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